msys2-launcher might be a better choice!

It looks like there might be a good, pinable launcher replacement. 

https://sourceforge.net/p/msys2/mailman/message/34599465/

I installed it, ran  `/C/msys64/msys2.exe` and was able to pin it to the start bar and have everything work fine. 

There's a list of other launchers at https://sourceforge.net/p/msys2/wiki/Launchers/ 
